{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64094","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-19T07:54:57.032Z","datePublished":"2026-07-19T15:40:01.772Z","dateUpdated":"2026-07-19T15:40:01.772Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-07-19T15:40:01.772Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: bla: avoid NULL-ptr deref for claim via dropped interface\n\nWithout rtnl_lock held, a hardif might be retrieved as primary interface of\na meshif, but then (while operating on this interface) getting decoupled\nfrom the mesh interface. In this case, the meshif still exists but the\npointer from the primary hardif to the meshif is set to NULL.\n\nThe mesh_iface must be checked first to be non-NULL before continuing to\nsend an ARP request using meshif."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/batman-adv/bridge_loop_avoidance.c"],"versions":[{"version":"23721387c409087fd3b97e274f34d3ddc0970b74","lessThan":"4f6266735a0ba6a568b6d4c9fa51c33a5a7f2d70","status":"affected","versionType":"git"},{"version":"23721387c409087fd3b97e274f34d3ddc0970b74","lessThan":"53cb3511f6eda37d3bd923545fdba6013b6d7bb7","status":"affected","versionType":"git"},{"version":"23721387c409087fd3b97e274f34d3ddc0970b74","lessThan":"efb62458c94db1fe3a287e7e89c31b0cfb03f938","status":"affected","versionType":"git"},{"version":"23721387c409087fd3b97e274f34d3ddc0970b74","lessThan":"2a8c9e86529156c62d9187b9ed9454c31665ad33","status":"affected","versionType":"git"},{"version":"23721387c409087fd3b97e274f34d3ddc0970b74","lessThan":"0f3ebd7bb417aabc44853cc7c2a184ebb0e05b45","status":"affected","versionType":"git"},{"version":"23721387c409087fd3b97e274f34d3ddc0970b74","lessThan":"6921a7683ae9ad0208d829e71f725a9e25ccff49","status":"affected","versionType":"git"},{"version":"23721387c409087fd3b97e274f34d3ddc0970b74","lessThan":"555b8d3f5c313d81d46274fd0976352dafc80124","status":"affected","versionType":"git"},{"version":"23721387c409087fd3b97e274f34d3ddc0970b74","lessThan":"f80d3d98d2ff78d9e2fe5d68b1f45948c4f7bd24","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/batman-adv/bridge_loop_avoidance.c"],"versions":[{"version":"3.5","status":"affected"},{"version":"0","lessThan":"3.5","status":"unaffected","versionType":"semver"},{"version":"5.10.259","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.210","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.176","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.143","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.93","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.34","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.11","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"5.10.259"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"5.15.210"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"6.1.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"6.6.143"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"6.12.93"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"6.18.34"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"7.0.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/4f6266735a0ba6a568b6d4c9fa51c33a5a7f2d70"},{"url":"https://git.kernel.org/stable/c/53cb3511f6eda37d3bd923545fdba6013b6d7bb7"},{"url":"https://git.kernel.org/stable/c/efb62458c94db1fe3a287e7e89c31b0cfb03f938"},{"url":"https://git.kernel.org/stable/c/2a8c9e86529156c62d9187b9ed9454c31665ad33"},{"url":"https://git.kernel.org/stable/c/0f3ebd7bb417aabc44853cc7c2a184ebb0e05b45"},{"url":"https://git.kernel.org/stable/c/6921a7683ae9ad0208d829e71f725a9e25ccff49"},{"url":"https://git.kernel.org/stable/c/555b8d3f5c313d81d46274fd0976352dafc80124"},{"url":"https://git.kernel.org/stable/c/f80d3d98d2ff78d9e2fe5d68b1f45948c4f7bd24"}],"title":"batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface","x_generator":{"engine":"bippy-1.2.0"}}}}